CN204865054U - Crystallization pre treatment device - Google Patents
Crystallization pre treatment device Download PDFInfo
- Publication number
- CN204865054U CN204865054U CN201520398578.7U CN201520398578U CN204865054U CN 204865054 U CN204865054 U CN 204865054U CN 201520398578 U CN201520398578 U CN 201520398578U CN 204865054 U CN204865054 U CN 204865054U
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- mother liquor
- barrel
- upper shell
- outlet
- lower shell
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a crystallization pre treatment device, including last barrel and lower barrel, the diameter of going up the barrel is greater than the diameter of barrel down, is equipped with double -layered jacket layer in the last barrel and the outside of barrel down, presss from both sides the jacket layer intussuseption and is filled with temperature regulation liquid, and the top of going up the barrel is equipped with two magma inlet pipes, the lateral wall of going up the barrel be equipped with acid amides oil discharge gate, mother liquor export, down the lateral wall of barrel be equipped with the export of multiviscosisty thick liquid, the bottom of lower barrel is equipped with elutriation liquid and enters the mouth, is located acid amides oil exit to be equipped with the over -pass in last barrel, the export of acid amides oil is connected with acid amides separating of oil equipment through overflow passage, and the mother liquor export is connected with the mother liquor storage tank through the mother liquor pipeline, upward still is equipped with on the barrel and sweeps the steam pipe, and the export of steam blowing pipe is located the mother liquor exit, be equipped with sight glass and back flush pipeline on overflow passage, the mother liquor exports that the high h on edge establishes to 1150-1200mm to the over -pass on, still is equipped with temperature sensor under and/or in the barrel at last barrel.
Description
Technical field
The utility model relates to chemical products crystallizer technical field, is specifically related to a kind of crystallization pre-processing device.
Background technology
Prior art is in caprolactam production, sulphur crystalline ammonium device is the intermediate link of caprolactam production flow process, its main task is: in the acid group produced by amidatioon device, sulfuric acid ammonia neutralizes, generate accessory substance sulphur ammonium, then through sedimentation separation, centrifugation, sulphur ammonium crystal and amide oil is separated.The pre-thick device of thiamines is the important composition of thiamines crystallization apparatus, the feed pretreatment equipment of thiamines centrifugation, be mainly used in the sulphur ammonium slurries from thiamines crystallizer and elutriation liquid counter current contacting, be separated after the amide oil washing that sulphur ammonium slurries are carried, sulphur ammonium slurries natural subsidence multiviscosisty simultaneously, improve the crystal concentration of centrifuge charging, unnecessary ammonium sulfate liquor is separated rear overflow and returns mother liquor tank with amide oil.Pre-thick device lactams oil and mother liquor interface location utilize the height of amide oil overflow baffle to control.
Because ammonium sulfate liquor is supersaturated solution, meet cold crystallization and easily scab and blocking pipeline, impact is normal produces and thiamines product quality.Pre-thick device amide oil overflow passage does not arrange detection method, can not the stopping state of timely and effective judgement pipeline, affects the effective process to pipeline.Due to reasons such as amide oil outlet and mother liquor outlet height, overflow baffle structure and pipeline blockage; in pre-thick device, Material control is unstable; often cause amide oil from pre-thick device top overflow or the problem entering mother liquor pipeline, cause that equipment safety is produced, the hidden danger of environmental protection and loss of material.
Utility model content
The purpose of this utility model is to overcome defect of the prior art, design is a kind of optimizes thickener structure and operation, avoid blocking overflow passage and mother liquor pipeline, improve the pre-separating effect of thick device and the security of production, reduce the crystallization pre-processing device of loss of material.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of crystallization pre-processing device, it is characterized in that, described equipment comprises upper shell and lower shell, the diameter of described upper shell is greater than the diameter of lower shell, chuck layer is provided with in the outside of upper shell and lower shell, temperature regulator solution is filled with in chuck layer, the top of described upper shell is provided with two magma feed pipes, the sidewall of upper shell be provided with amide oil discharging opening, mother liquor outlet, lower shell sidewall be provided with multiviscosisty serum outlet, the bottom of lower shell is provided with naughty wash liquor inlet, is positioned at acid amides oil plant exit and is provided with overflow baffle in upper shell; The outlet of acid amides oil plant is connected with amide oil separation equipment by overflow passage, and mother liquor outlet is connected with mother liquor holding tank by mother liquor pipeline, and described upper shell is also provided with the pipe that purges steam, and the outlet of described steam blowing pipe is positioned at mother liquor outlet place; Described overflow passage is provided with visor and backwash pipeline; On described mother liquor outlet to overflow baffle, the height h on edge is set to 1150 ~ 1200mm, and mother liquor outlet is 1800mm to the height at upper shell top, in described upper shell and/or lower shell, be also provided with temperature sensor.
Wherein preferred technical scheme is that institute's overflow baffle is laciniation, and the height of sawtooth is 50 ~ 100mm.
Preferred technical scheme also has, and the bottom of described magma feed pipe is set to upwards body centre and bends and the structure circumferentially tilted, and the angle α to center curvature and vertical line is 5 ~ 20 °, is circumferentially 20 ~ 70 ° with the angle β of circumferentially tangent line.
Preferred technical scheme also has, and described lower shell is also provided with and eluriates liquid return duct, the outlet of described elutriation liquid return duct is connected on the pipeline of naughty wash liquor inlet.
Preferred technical scheme also has, described chuck layer is provided with inlet and the leakage fluid dram of temperature regulator solution, inlet is connected with temperature regulator solution storage tank by feed tube, circulating pump, and leakage fluid dram is connected with temperature regulator solution storage tank by discharging tube, is provided with thermoregulator in temperature regulator solution storage tank.
Preferred technical scheme also has, and described temperature sensor is connected with the temperature indicator being arranged on upper shell outside.
Advantage of the present utility model and beneficial effect are: described crystallization pre-processing device is by adding at mother liquor outlet the pipe that purges steam, backwash pipeline is added at amide oil overflow passage, guarantee amide oil overflow passage and mother liquor pipeline unimpeded, avoid occurring entrance and pipeline blockage, the phenomenon that scabs occurs, improve the security of producing.Overflow passage installs visor, is convenient to Timeliness coverage and process blockage problem.On mother liquor outlet to overflow baffle, the Height Adjustment on edge is 1150 ~ 1200mm, overflow baffle adopts laciniation, be conducive to optimal control amide oil and mother liquor interface location, avoid the amide oil that occurs to carry secretly in mother liquor or amide oil from pre-thick device top overflow, reduce in product sulphur ammonium and carry caprolactam secretly, improve separating effect and the product quality of mother liquor and amide oil, by the outer setting chuck layer at upper shell and lower shell, control the temperature of the temperature regulator solution in chuck layer, the control to material crystal speed can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model crystallization pre-processing device.
In figure: 1, upper shell; 2, lower shell; 3, chuck layer; 4, magma feed pipe; 5, amide oil discharging opening; 6, mother liquor outlet; 7, multiviscosisty serum outlet; 8, wash liquor inlet is washed in a pan; 9, overflow baffle; 10, overflow passage; 11, mother liquor pipeline; 12, mother liquor holding tank; 13, purge steam pipe; 14, visor; 15, backwash pipeline; 16, temperature sensor; 17, liquid return duct is eluriated; 18, inlet; 19, leakage fluid dram; 20, circulating pump; 21, temperature regulator solution storage tank; 22, temperature indicator.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1: the utility model is a kind of crystallization pre-processing device, described equipment comprises upper shell 1 and lower shell 2, the diameter of described upper shell 1 is greater than the diameter of lower shell 2, chuck layer 3 is provided with in the outside of upper shell 1 and lower shell 2, temperature regulator solution is filled with in chuck layer 3, the top of described upper shell 1 is provided with two magma feed pipes 4, the sidewall of upper shell is provided with amide oil discharging opening 5, mother liquor outlet 6, the sidewall of lower shell 2 is provided with multiviscosisty serum outlet 7, the bottom of lower shell 2 is provided with naughty wash liquor inlet 8, in upper shell 1, be positioned at acid amides oil plant export 5 places and be provided with overflow baffle 9, acid amides oil plant outlet 5 is connected with amide oil separation equipment by overflow passage 10, and mother liquor outlet 6 is connected with mother liquor holding tank 12 by mother liquor pipeline 11, and described upper shell 1 is also provided with the pipe 13 that purges steam, and the outlet of described steam blowing pipe 13 is positioned at mother liquor outlet 6 place, described overflow passage 10 is provided with visor 14 and backwash pipeline 15, on described mother liquor outlet 6 to overflow baffle 9, the height h on edge is set to 1150 ~ 1200mm, and the height at mother liquor outlet 6 to upper shell top is 1800mm, in described upper shell 1 and/or lower shell 2, be also provided with temperature sensor 16.
Wherein preferred technical scheme is that institute's overflow baffle 9 is laciniation, and the height of sawtooth is 50 ~ 100mm.
The preferred embodiment of the utility model also has, the bottom of described magma feed pipe 4 is set to upwards body centre and bends and the structure circumferentially tilted, angle α to center curvature and vertical line is 5 ~ 20 °, is circumferentially 20 ~ 70 ° with the angle β of circumferentially tangent line.
The preferred embodiment of the utility model also has, and described lower shell 2 is also provided with and eluriates liquid return duct 17, the outlet of described elutriation liquid return duct 17 is connected on the pipeline of naughty wash liquor inlet 8.
The preferred embodiment of the utility model also has, described chuck layer 3 is provided with inlet 18 and the leakage fluid dram 19 of temperature regulator solution, inlet 18 is connected with temperature regulator solution storage tank 21 by feed tube, circulating pump 20, leakage fluid dram 19 connects 21 by discharging tube and temperature regulator solution storage tank and connects, and is provided with the utility model thermoregulator in temperature regulator solution storage tank 21.
The preferred embodiment of the utility model also has, and described temperature sensor 16 is connected with the temperature indicator 22 being arranged on upper shell 1 outside.
The operating process of the utility model crystallization pre-processing device is: thiamines crystallizer is rich in sulphur ammonium crystal grain magma delivers to crystallization pre-processing device by pipeline, enters upper shell 1 through two magma feed pipes 4, and elutriation liquid is washed in a pan wash liquor inlet 8 and entered lower shell 2 from bottom.Be separated with mother liquor at the top amide oil of upper shell, the bottom sulphur ammonium crystal of lower shell 2 carries out sorting and slurries multiviscosisty.Amide oil is through overflow baffle 9, acid amides oil plant outlet 5 and overflow passage 10 to amide oil decanter, and mother liquor arrives mother liquor tank 12 through mother liquor outlet 6 with mother liquor pipeline 11, and the slurries after multiviscosisty enter centrifuge will carry out centrifugation.The pipe 13 that purges steam at mother liquor outlet 6 place ejection purges steam, and improves the mother liquor temperature overflowed, and the mobile performance improving mother liquor avoids blocking mother liquor pipeline.Overflow passage 10 adds backwash pipeline 15, finds that amide oil overflow passage 10 occurs blocking or scabs by visor 14, starts backwash in time and dredges, avoid blocking.By overflow baffle 9 Natural regulation of broached-tooth design, on mother liquor outlet 6 to overflow baffle 9, the Altitude control on edge is between 1150 ~ 1200mm, reduce the entrainment of amide oil in mother liquor, avoid the pre-thick device overflow of amide oil simultaneously, reduce the pollution to equipment and environment, the race reducing material is damaged, and improves the quality of thiamines product.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a crystallization pre-processing device, it is characterized in that, described equipment comprises upper shell and lower shell, the diameter of described upper shell is greater than the diameter of lower shell, chuck layer is provided with in the outside of upper shell and lower shell, temperature regulator solution is filled with in chuck layer, the top of described upper shell is provided with two magma feed pipes, the sidewall of upper shell be provided with amide oil discharging opening, mother liquor outlet, lower shell sidewall be provided with multiviscosisty serum outlet, the bottom of lower shell is provided with naughty wash liquor inlet, is positioned at acid amides oil plant exit and is provided with overflow baffle in upper shell; The outlet of acid amides oil plant is connected with amide oil separation equipment by overflow passage, and mother liquor outlet is connected with mother liquor holding tank by mother liquor pipeline, and described upper shell is also provided with the pipe that purges steam, and the outlet of described steam blowing pipe is positioned at mother liquor outlet place; Described overflow passage is provided with visor and backwash pipeline; On described mother liquor outlet to overflow baffle, the height h on edge is set to 1150 ~ 1200mm, and mother liquor outlet is 1800mm to the height at upper shell top, in described upper shell and/or lower shell, be also provided with temperature sensor.
2. crystallization pre-processing device as claimed in claim 1, it is characterized in that, institute's overflow baffle is laciniation, and the height of sawtooth is 50 ~ 100mm.
3. crystallization pre-processing device as claimed in claim 1, it is characterized in that, the bottom of described magma feed pipe is set to upwards body centre and bends and the structure circumferentially tilted, angle α to center curvature and vertical line is 5 ~ 20 °, is circumferentially 20 ~ 70 ° with the angle β of circumferentially tangent line.
4. crystallization pre-processing device as claimed in claim 1, is characterized in that, described lower shell is also provided with and eluriates liquid return duct, the outlet of described elutriation liquid return duct is connected on the pipeline of naughty wash liquor inlet.
5. crystallization pre-processing device as claimed in claim 1, it is characterized in that, described chuck layer is provided with inlet and the leakage fluid dram of temperature regulator solution, inlet is connected with temperature regulator solution storage tank by feed tube, circulating pump, leakage fluid dram is connected with temperature regulator solution storage tank by discharging tube, is provided with thermoregulator in temperature regulator solution storage tank.
6. crystallization pre-processing device as claimed in claim 1, it is characterized in that, described temperature sensor is connected with the temperature indicator being arranged on upper shell outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520398578.7U CN204865054U (en) | 2015-06-11 | 2015-06-11 | Crystallization pre treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520398578.7U CN204865054U (en) | 2015-06-11 | 2015-06-11 | Crystallization pre treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204865054U true CN204865054U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520398578.7U Expired - Fee Related CN204865054U (en) | 2015-06-11 | 2015-06-11 | Crystallization pre treatment device |
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| Country | Link |
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| CN (1) | CN204865054U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113101682A (en) * | 2021-05-28 | 2021-07-13 | 新疆心连心能源化工有限公司 | Device for reducing evaporation of condensation compound and stabilizing urea production and treatment method |
| CN114669093A (en) * | 2022-02-25 | 2022-06-28 | 安徽东至广信农化有限公司 | Material separation device for reduction synthesis of o-phenylenediamine |
-
2015
- 2015-06-11 CN CN201520398578.7U patent/CN204865054U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113101682A (en) * | 2021-05-28 | 2021-07-13 | 新疆心连心能源化工有限公司 | Device for reducing evaporation of condensation compound and stabilizing urea production and treatment method |
| CN114669093A (en) * | 2022-02-25 | 2022-06-28 | 安徽东至广信农化有限公司 | Material separation device for reduction synthesis of o-phenylenediamine |
| CN114669093B (en) * | 2022-02-25 | 2023-11-07 | 安徽东至广信农化有限公司 | Material separation device for reduction synthesis of o-phenylenediamine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |